note 94477 modified in function.ip2long by felipe
| From: | felipe@php.net | Date: | Sat, 07 Nov 2009 14:43:19 +0000 |
| Subject: | note 94477 modified in function.ip2long by felipe | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-162475@lists.php.net to get a copy of this message | ||
Here some working ip2long6 and long2ip6 functions - keep in mind that this needs php gmp-lib:
<?php
$ipv6 = "2001:4860:a005::68";
function ip2long6($ipv6) {
$ip_n = inet_pton($ipv6);
$bits = 15; // 16 x 8 bit = 128bit
while ($bits >= 0) {
$bin = sprintf("%08b",(ord($ip_n[$bits])));
$ipv6long = $bin.$ipv6long;
$bits--;
}
return gmp_strval(gmp_init($ipv6long,2),10);
}
function long2ip6($ipv6long) {
$bin = gmp_strval(gmp_init($ipv6long,10),2);
if (strlen($bin) < 128) {
$pad = 128 - strlen($bin);
for ($i = 1; $i <= $pad; $i++) {
$bin = "0".$bin;
}
}
$bits = 0;
while ($bits <= 7) {
$bin_part = substr($bin,($bits*16),16);
$ipv6 .= dechex(bindec($bin_part)).":";
$bits++;
}
// compress
return inet_ntop(inet_pton(substr($ipv6,0,-1)));
}
print $ipv6long = ip2long6($ipv6)."\n";
print $ipv6 = long2ip6($ipv6long)."\n";
?>
outputs:
42541956150894553250710573749450571880
2001:4860:a005::68
--was--
Here some working ip2long6 and long2ip6 functions - keep in mind that this needs php gmp-lib:
$ipv6 = "2001:4860:a005::68";
function ip2long6($ipv6) {
$ip_n = inet_pton($ipv6);
$bits = 15; // 16 x 8 bit = 128bit
while ($bits >= 0) {
$bin = sprintf("%08b",(ord($ip_n[$bits])));
$ipv6long = $bin.$ipv6long;
$bits--;
}
return gmp_strval(gmp_init($ipv6long,2),10);
}
function long2ip6($ipv6long) {
$bin = gmp_strval(gmp_init($ipv6long,10),2);
if (strlen($bin) < 128) {
$pad = 128 - strlen($bin);
for ($i = 1; $i <= $pad; $i++) {
$bin = "0".$bin;
}
}
$bits = 0;
while ($bits <= 7) {
$bin_part = substr($bin,($bits*16),16);
$ipv6 .= dechex(bindec($bin_part)).":";
$bits++;
}
// compress
return inet_ntop(inet_pton(substr($ipv6,0,-1)));
}
print $ipv6long = ip2long6($ipv6)."\n";
print $ipv6 = long2ip6($ipv6long)."\n";
outputs:
42541956150894553250710573749450571880
2001:4860:a005::68
http://php.net/manual/en/function.ip2long.php